Cloud Defense Logo

Products

Solutions

Company

Book A Live Demo

CVE-2021-21203 : Security Advisory and Response

Learn about CVE-2021-21203 vulnerability in Google Chrome before version 90.0.4430.72, allowing remote attackers to exploit heap corruption via crafted HTML pages. Find out the impact, affected systems, and mitigation steps.

A detailed overview of the CVE-2021-21203 vulnerability found in Google Chrome prior to version 90.0.4430.72, allowing remote attackers to potentially exploit heap corruption.

Understanding CVE-2021-21203

This section covers the essential information about the CVE-2021-21203 vulnerability in Google Chrome.

What is CVE-2021-21203?

The CVE-2021-21203 vulnerability refers to a use after free issue in Blink in Google Chrome versions prior to 90.0.4430.72. It enables a remote attacker to potentially exploit heap corruption through a carefully crafted HTML page.

The Impact of CVE-2021-21203

The vulnerability could lead to a remote attacker causing heap corruption and potentially executing arbitrary code on the victim's system, posing a significant security risk to affected users.

Technical Details of CVE-2021-21203

In this section, we delve into the technical aspects of the CVE-2021-21203 vulnerability.

Vulnerability Description

The vulnerability arises from a use after free issue in Blink in Google Chrome versions before 90.0.4430.72, allowing remote attackers to exploit heap corruption via malicious HTML pages.

Affected Systems and Versions

Google Chrome versions earlier than 90.0.4430.72 are impacted by this vulnerability, putting users of those versions at risk of exploitation.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by luring users to visit a specially crafted HTML page, triggering the use after free issue and executing arbitrary code remotely.

Mitigation and Prevention

This section outlines essential steps to mitigate the CVE-2021-21203 vulnerability and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their Google Chrome browsers to version 90.0.4430.72 or higher to patch the vulnerability and protect their systems from potential attacks.

Long-Term Security Practices

In addition to immediate patches, users should practice safe browsing habits, avoid clicking on suspicious links or visiting untrusted websites to minimize the risk of similar vulnerabilities.

Patching and Updates

Regularly updating Google Chrome to the latest version is crucial to ensure protection against known vulnerabilities and to benefit from the latest security enhancements.

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now